Checking Program - Electrical Circuit QWS
| Test | Test Equipment | Test | Notes | Nominal | ||
|---|---|---|---|---|---|---|
| Step | Multimeter | |||||
| MKM - 587 - A | ||||||
| of | ||||||
| between | Value | |||||
| 06b | Voltmeter range 20V, DC | Voltage supply VSV2 Y69 (Campo / Brava 4JA1 only) | Y69, ter. 1 | Y69, ter. 2 | · Disconnect wiring harness plug from VSV2 Y69 |
· Reconnect wiring harness plug to half acceleration switch S163
| · Ignition "ON" | ||
|---|---|---|
| · QWS switch "ON" | 0 V | |
| · Accelerator pedal slightly depressed |
· Measurements at wiring harness plug
| · Reconnect wiring harness plug after measurements | > 11.5 V | |
|---|---|---|
| Troubleshooting: | Nominal Value: | Cause of Fault: |
| · Disconnect wiring harness plug from acceleration switch S173 |
· Measure voltage with multimeter
from: Acceleration switch S173, wiring harness plug ter. 1
| to: Ground | > 11.5 V | · Line interrupted |
from: Acceleration switch S173, wiring harness plug ter. 1
to: Half acceleration switch S163 wiring harness plug ter. 2
· Reconnect wiring harness plug to acceleration switch S173
· Measure voltage with multimeter
from: VSV2 Y69, wiring harness plug ter. 1
to: Ground
| · Accelerator pedal released | 0 V | |
|---|---|---|
| · Accelerator pedal slightly depressed | > 11.5 V | · Line interrupted or short circuit to voltage |
from: Acceleration switch S173, wiring harness plug ter. 2
to: VSV2 Y69, wiring harness plug ter. 1
or
· Acceleration switch S173 defective
· Measure resistance with multimeter
from: VSV2 Y69, wiring harness plug ter. 2
| to: Ground | approx. 0 W | · Line interrupted |
from: VSV2 Y69, wiring harness plug ter. 2
to: Ground
| If nominal values are attained: | · See section 8.2.3 Vacuum Circuit QWS for further diagnosis on the vacuum circuit |